Author of books:The Social World of the Florentine Humanists, 1390-1460 (1963, history)Lawyers and Statecraft in Renaissance Florence (1968, history)Society and History in English Renaissance Verse (1985, criticism)Power and Imagination: City-States in Renaissance Italy (1989, history)Italian Renaissance Sextet: Six Tales in Historical Context (1994, collection)Strong Words: Writing and Social Strain in the Italian Renaissance (2001, history)April Blood: Florence and the Plot Against the Medici (2003, history)Loredana: A Venetian Tale (2005, novel)Fire in the City: Savonarola and the Struggle for Renaissance Florence (2006, biography)Furies: War in Europe, 1450-1700 (2013, history)